Improvement in swinging railways for loading vessels



JAMES L. CHEES-EMAN.

Improvement in Swinging Railway for Loading Vessels.

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4/4 PnaTo-l/mamAM/a :0. mr/ 035051455 mommy UNITED STATES Para 'r JAMESL. OHEESEMAN, OF GARDINER, MAINE, ASSIGNOR OF ONE-HALF HIS RIGHT TOHENRY G. OHEESEMAN, OF SAME PLACE.

IMPROVEMENT IN SWINGING RAILWAVS FOR LOADING VESSELS.

To all whom it may concern:

Be it known that I, JAMES L. GHEESEMAN, of Gardiner, Kennebec county andState of Maine, have invented a new and useful Double-Swing Derrick forLoading Vessels with Ice in tide waters, of which the following is aspecification:

The object of my invention is to obviate the difficulties in loadingvessels with ice from the icehouses, resulting from the rise and fall ofthe tide; and it consists, in connection with an elevated wharf-platformof suflicient height to allow for the fluctuations of the tide, of adoubleswing derrick and an adjustable movable plat form-car, with itsWindlass and attachments, hereinafter described.

Owing to the rise and fall of the tide, in loading vessels with icedirectlyfrom the houses great trouble and labor is imposed by thenecessity of constantly adjusting the runs or slides upon which the iceis carried to the vessel to accommodate the tides variations. At lowtide the descent is apt to he so great as to endanger the slides and torisk breakage of the ice, while at high tide, in addition to the troubleof adjusting the slides, is often imposed the necessity of pushing upthe ice to reach the vessels deck. In both cases the services of manyhands are required.

To avoid these difficultiesI construct a platform upon the wharf ofsufficient elevation to allow for loading a vessel at high tide, connectthe same by slides with the ice-house, and attach my invention.

The drawing represents my invention in perspective.

A is the elevated platform, supported in the ordinary way upon frame B,and is located near the verge of wharf Q. At its outer end and upon eachside is an upright post, P, whose lower end is pivoted in a frameprovided upon the Wharf,and upper end, by means of its pin p,pivoted tocross-bar D. Rods R, anchored to the wharf and looped over pins 1), holdcross-bar D in position, brace posts P, and allow them to turn upontheir pivots. PostsP may be further braced by any of the known means.Upon the platform A parallel rails O G are laid and secured, whichextend out to post P and are of the same gauge as their inner surfaces.Each of posts P is provided with an arm, E, at right angles with it andSpecification forming part of Letters Patent No. 121,333, dated November28, 1871.

of the height of platform A, properly braced by iron rods m m, and toeach arm is bolted a rail, L, on alevel with the inner part of rails 0.To one of these arms are hinged bars 6 c of even length, whose office,when arms E are swung over the vessel, is to secure the arms in parallelposition by hooking into the staples provided upon the other arm. Whenarms E are thus in position their rails line with rails O O and form acontinuous track. Car K is mounted upon wheels W, gauged to thedescribed track. Its outer end carries a Windlass, U, mounted over asuitable opening in the carplatform, and duly provided with rope orchain and crates for lowering the ice. Boards S S and bar H are hingedto its inner end. The boards serve as bridges from platform A when thecar is moved out over and upon arms E, and bar H, by means of its hook,catches in notches h in the floor of platform A and anchors the car inany desired position. When my invention is not in use the car is drawnback upon the platform, bars 0 c are unhooked and permit ted to swingupon their l'linges, and arms E are swung back over the wharf. In thisposition a vessel can he brought up for loading. The arms E are thenswung out, hinged bars 0 c are hooked in their proper places, car K ismoved out upon the rails of arms E and adjusted over the vessels hatchways and there anchored by means of hooked bar H. Some movable slidesconnect car K with the slides from the ice-house, and the preparationsare complete.

The adjustal'iility of the various parts of my invention enables avessel to be brought in, laden, and taken out without loss of time andwith very little trouble.

I claim as my invention 1. The swinging railwayin connection with thestationary railway and platform-car, constructed substantially as andfor the purpose set forth.

2. The combination of platform A and its stationary rails O O, pivotedpost P P and their arms E E, and hinged bars 6 c with car Kandits hingedplanks S S and hooked rod H, substantially in the manner and for thepurpose set forth.

JAMES L. GHEESEMAN.

Witnesses:

H. O. CHEEsEMAN, LORENZO CLAY.

